ULongLongSub function (intsafe.h)

Subtracts one value of type SIZE_T from another.

Syntax

HRESULT ULongLongSub(
 [in] ULONGLONG ullMinuend,
 [in] ULONGLONG ullSubtrahend,
 [out] ULONGLONG *pullResult
);

Parameters

[in] ullMinuend

Type: SIZE_T

The value from which cbSubtrahend is subtracted.

[in] ullSubtrahend

Type: SIZE_T

The value to subtract from cbMinuend.

[out] pullResult

Type: SIZE_T*

A pointer to the result. If the operation results in a value that overflows or underflows the capacity of the type, the function returns INTSAFE_E_ARITHMETIC_OVERFLOW and this parameter is not valid.

Return value

Type: HRESULT

If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

This is one of a set of inline functions designed to provide arithmetic operations and perform validity checks with minimal impact on performance.

Requirements